As a follow up to my original post, I now have 20 engines with RP modules installed. I've consisted 4 at a time, with only about 10 seconds of button pushing, AND NO CV'S TO FOOL WITH.
In a recent conversation with Tim Ring, I found out that you can consist up to 12 engines, or any combination of consists + double headers, singles, etc., as long as there are only 12 drawing power. I would imagine that with another power booster, you could increase that number, but don't quote me on that.
My layout is still under construction and I only have a temporary track down for break in and testing purposes. But I am steadily working on it. Today I was installing more ceiling grid for phase 2 of my layout. I had a friend helping me that is moving out of state soon, so I thought I better get him to help me while he was still here.
If anyone is interested, there is a Rail Pro forum with a lot of information, tricks, & how to information at,
http://rpug.pdc.ca/index.php (Rail Pro Users Group).
Here's a pic of one installation.
Joe